Free collector tools

Check the card before you submit

Public tools for the parts of grading you can measure at home. No account needed.

Centering calculator

Drag border lines on a photo or enter measurements. Compare front and back centering with PSA's published guidelines. Photos stay in your browser.

For corners, edges and surface too, get a free photo estimate. Three estimates a month with a free account. Compare plans.

Estimate, not a PSA grade. Not affiliated with PSA.